Spinning ring and traveler



Oct. 18, 1927; I 6, 3

- C-. F. MERRILL SI;INNING RING AND Tfi vELER Filed Feb. 18, 1927 S heets-Sheet;

Fig.1.

. V Inventor.

Charles F. Merrill Oct. 18, 1927.

C. F. MERRILL SPINNING RING AND TRAVELER Filed Feb. 1 1927 Fig. 5.

3 Sheets- Sheet 2 1 InvenTor.

ChoHes vF. Merrill byfwlwkw Atrys Oct. 18, 1927- I c. F. MERRILL SPINNING RING AND TRAVELER Filed Feb. 18, 1927 5 Sheets-Sheet 3 lnvenTor. Charles F. Mernll WM&

RI Tys Patented Oct. 18, 1927. r

ZN'ITED T -E s PATEN "forrica,

' CHARLES MERRILL, or HOPEDALE, KASSACHUSETTS, ASSIGNOR tro naaran'cons PORATIQN, or HOPEDALE, MAsSecHUsErrs, A CORPORATION or MAINE.

I SPINNING RING AND TRAVELER.

1 Application filed February 18, 1927. semi No. maes fi pressure of the traveler, due to centrifugal interposed yarn and in part directly by the ring surface. Under some conditions the relative division ofthis pressure may be such as to interrupt the continuity of the spinning process." If, for example, the pressure of thetraveler against the interposed yarn forming the bearing medium between the traveler and the ring surface"is-relatively great, while the frictional resistance between the traveler and that portion of the ring surface with which it directlycontacts is relatively Small, the passage of the yarn through the traveler vmay be' restricted or entirely interrupted. If and when this happens, the traveler will revolve on the ring at the same, or nearly thesame, speed of revolution. as that of the yarn receiver or bobbin and the yarn will not be wound up.

It is obviously essential that the fibres or yarns delivered to the traveler and spun or twisted together shall, pass through the'traveler in'order tobe wound upon the bobbin or yarn receiver.

The main object of thepresent invention is to insure such passage of the yarn through the traveleras is necessary for the winding I of the spun or twisted yarn on the bobbin or yarn receiver in conjunction with that type of spinning mechanism wherein the yarn is normally pressed between the cooperating opposed traveler and ring surfaces.

The present invention is basediupon the principle that the required passage of the yarn through the traveler, while it must take place during each revolution of the traveler, need not take place uniformly and continuously throughout the entire revolution but may take place at one or more porforce and to gravity, is taken, in part by the tions of the revolution, This is due to the fact that the amount of yarn .to'be wound on the bobbin at each revolution is relatively small, being approximately equal to the reciprocal oft'he number of turns of twist per incln For example, if'the yarn being Spun has twenty-eight turns of twist per inch, there will be approximately 50116 twenty-eighth of an inch of yarn delivered to the bobbin at each revolution thereof.-

lf, then, there is an opportunity at some point in the revolntionof the traveler for the yarn to pass freely through thetraveler for a suflicient time to allow this small amount to advance toward the; bobbin, it fol lows that the advance of thewyarn through the traveler may he zentirelystopped during the remaining portion of the revolution.

The object of the invention-more specifi: cally is to secure the desired result by formmg a depression in the bearing surface of the ring-against which the yarn is normallv carried by t he traveler, so that as the trave'ler passes over this depression, the bearing pressure on the yarnv will-be relieved and the" yarn :thus released for winding.

These :and other objects andfeatures of the invention will appear more fully from the accompanying description and drawings and will be particularly pointed out in the claims. a i r a c Since the operation of ring spinning and the various mechanisms employed for performing this operation are well known and familiar to those skilled in the art, and since I the aforesaid Patent No. 1,604,929 sets forth quite fully the, conditions existinggin that type wherein the yarn forms a' be'aring medium between opposed cooperatingsurfaces of the ring and traveler duringthe spin- 'nin'goperation, it is only necessary here to illustrate and describe the preferred featunes of construction and their operation in which the present invention may .be embodied.

' I Inxthe drawings :r r

elerembodying .a preferred form ofythe" "presentinvention .and in the relation, existing when .in a spinningframe.

Fig. 2 is stop plan V1eW'0f the construe tion shown in Fig, 1.

Fig. 3 is aview similar to a portion of Fig.1 showing a second form of the invention. v

Fig. 1 is a top plan view of the construction'shown in Fig. 3. p

Fig. 5 is a View similarto Fig. l of a. third form of the invention.

2 Fig. 6 is a top plan view of the construe tion shown in Fig. 5. i

Fig. 7 1s a view similar to Fig. 3 showing afourth form of the. invention.

Fig. 8 is a top plan view of the construction shown in Fig. 7. p Y 7 Fig. 9 is a view similar to Fig. lomitting the bobbin and showing a fifth form of the invention wherein the ring is of the vertical "type such as employed in a twister frame.

.Fi'g. 10 is a top plan view of the construction shown in F 1g. 9. v

Fig. 11 1s a v ew similar to aportion of :Fig. 9 showing asixth form of the invention.

Fig. 12 is a top plan view of the construction shown in Fig. 11. t In theoperation of ring spinning the yar passes down through a guide eye and thence through the traveler and thence to the bobbin or other yarn receiver upon which it wound; A relative, vertical movement is given to theyarn and yarn receiver to secure the traverse of theyarn lengthwise of the yarn receiver.

As already pointed out, the present invention has to do wvith that type of ring .-spinning mechanism wherein the yarn eX- tends between, is pressed between and. forms 1 a bearing medium between the traveler and the surface of the ring. Consequently so long as this relation exists during the normal spinning operation, the ring and traveler may take a wide variety of shapes. In Figs. 1, 2, 5 and 6 of the drawings, the ring'and traveler are similar to constructions.i'llustrated in the aforesaid Patentllo. 1,60%,929; in Figs. 3, 4, 7 and 8 the traveler is shown as of the'old and familiar C-shape, while the ring surface is shaped to embody in connection with this old type of traveler the basic principles of the aforesaid Patent No.

' 1,604,929; and in Figs. 9 to 12, inclusive, the

ring and traveler are shown as ofthe vertical type, such as more commonly employed in twisting.

In the construction illustrated in Figs. 1

"and 2, the: yarn 1 is shown passing down through the traveler and being wound upon a bobbin or yarn receiver 2. The ring 3 and traveler 4 are shown constructed lir'accordance with the principles of the aforesaid Patent'No. 1,604,929. The portion of the flange of the ring which .is traversed by thetraveler is shapedin a general way to correspond with the shape of the traveler, and the inner, upper, peripheral surface 6 and the inner, lower, peripheral surface 7 both converge inwardly. The traveler,

groove 10 may be relatively narrow.

which may be formed of the usual stock of which travelers are made, is preferably a symmetrical structure presenting a central bow sect-ion S of substantially circular arcuate form, the sides of which merge by smooth curves into the horns 9. lVith this =onstruction, during the normal spinning operation. one horn 9 of the traveler has an extended bearing throughout its length upon the inner, lower, peripheral surface 7 of the r ng, while the 21(l]21l1t section of the bow .Eipresents substantially the same angular relation to the born 9 as does the upper, per pheral surface 6 to the lower, peripheral surface 7 of the ring. Under these conditions the adjacentsect-ion of the traveler extends substantially equidistant from or in a general way parallel with, the upper, in-

ner bearing surface 6 of the ring and the yarn extends between and is pressed between and forms a bearing medium between these twoqcooperating opposed surfaces, that is, the inner surface of the bow section of the traveler and the inner, upper, peripheral surface 6 of the ring.

If. then, owing to therelative frictional conditions e isting and the forces acting, particularly the centrifugal force generated by the revolution of the traveler and the force of gravity, the yarn does not pass throinz h the traveler as required for windupon the bobbin in the spinning opera .fore, the. traveler-passes over this groove,

the bearing pressure on the yarn is momentarily relieved and thus the yarn is released sufhciently to allow its passage.

.through the traveler to be wound on the bobbin 2. As already pointed out, but a very small length of yarn is thus wound at. each revolution of the traveler and hence the But the width or the number of these depressions or grooves employed may obviously be 1 varied asv required.

The groove 10 also preferably extends at an inclination to the elements of the surface 6 and also at an inclination to the plane of the-traveler when running. This is desirable because it prevents the traveler when passing over the groove from dropping into the groove or below the bearing surface of the ring.

The construction shown in Figs. 3 and 4 is similar to that just described, except as to the particular shape of the ring and i horns '12- extend toward each other.

.. the

theuppenfinner, peripheral surface 'of' the ring are opposed and cooperate with fyarn' extending between them, pressed between them and forming a bearing medium between them during the normal spinning operation. lVith' this construction, utilizing the old styletravelenthe traveler will run in atilted position, as shown, to

allowthe proper cooperation of the various bearingsurfaces. The inner, peripheral surfaces 14 and 15 of the ring converge inwardly' i Y i In this construction the depression or groove IG'isconstru'cted upon the sameprinand 6. g a In the construction shown in Figs. 9 to 12,

ciple and has the same functions as that shown at 10, in the preceding figures. 'f' The construction shown in Figs. 5 and G isthe same as that shown in Figs. 1 and 2 except that the depressionprovided for relieving the bearing pressure onthe yarn during aportion of each revolution of the travelerjto release the'yarn' for winding is of a different form. Here this depression 17 is as, if made with a cylindrical cutter hav its axis radial to the axis of the ring. In practice it is found that such a depression may be, used of sufficient length to relieve the bearing pressure on the yarn to the required extent without chattering'of the traveler.

, I The construction shown in Figs. 7 and 8 is the. same as that shown in vFigs. ,3 and 1 except that the depression 18 is of the same fo'rmas the depression 17 shown in Figs.

inclusive, the ring19 is of the vertical type. In this case the traveler 20 has a portion,

or the whole, of its inner vertical surface extending substantiallyparallel .to the inner peripheral surface .21 of the ring so that these opposed, surfaces of the traveler and ring underthe forces act ng pressagainst.

the yarn extending between them and here likewise the yarnforms a bearing medium between the traveler andring. In Figs. 9

and 10 a depression in. the form of a groove 22 extends at an inclination across the peripheral surface 21 of the ring or that portion thereof over which the yarn 23 is carried by the traveler, while in Figs. 11 and 12 to a vertical type of ring wherein the yarn extends between opposed cooperating surfaces-:o-f'the traveler-"and ring and forms a; bear ng medium therebe'tween'. The groove 2201 the depression 24 will in either case reli-eve the bearing pressure on the yarndu-ring a portion of each revolution of the trave-ler and thus release the requisite amount of yarn for winding'on the bobbin'or yarn ree1-ver. Having thus described the invention, what is claimed as new, and desired to be secured by Letters Patent, is: 1 I '1. A spinning mechanism comprising a spinning ring and a. travelerhaving opposed cooperatingsurfaces'between which the yarn extends and is pressed and forms abearing medium during the spinning operation, the said ring surface having a depression for relieving the bearing pressureonth'c yarn during a portion of each revolution of the traveler to-release the yarnfor winding.

2, A spinning mechanism comprising a spinning ring {and a traveler having opposed cooperating surfaces between which"; the yarn extends and. is pressed"and-forms a hearing medium during the spinning opera-, tion, the said ring surface having a groove extending thereacros's at an inclination to "the elements thereof for relieving thebearing pressure on' the yarn during a portion of .each revolution of thetraveler to 'release th-s yarn forwinding. 1

3. A spinnihgmtzhaniSm 'comprisinthe construction definedin claim 2, in whic 1- the said groove also extends at an inclination to the plane of the traveler when running to prevent the traveler from dropping into the groove during its revolution; 1. spinning mechanism" comprising a spinning ringand a traveler having oplift! posed cooperating'surfaces between which the yarn extends and is pressed and forms a bearingniediFu-mjduring the spinning operation, and means for relieving the bearing pressure: on the yarn; during a portion of the revolution of thetravelerto release the yarn fin-winding:

I 5. A spinning'rin'g having a peripheral inner surface. against which normally the yarn is pressed and travels during the spinning operation and having a depression-in the said surface for relieving the pressure .on the yarn when ittravels thereover and thus release the yarn for winding.

tion defined'jin claim 5, in which the said depressionisin the form-of 'a groove extending across the said surface at an inclination to the elements thereof.

TIA spinning ring having the construction defined in claim 5, in which the said depression is in the form of a groove extending acrossthe said surface atan inclination both to the elements thereof and to the plane of a traveler when running thereon.

6. A spinning ring hELVlIlg"tl1e-CODSlZ-IHC- 8. A spinning mechanism comprising, a spinning ring, the inner periphery of which comprises upper and lower inwardly converging bearing surfaces, a traveler shaped so that, when it is running with its inner horn riding on the said lower bearing surface, the. yarn will extend, be pressed, and form abearing medium, between the inner side of the adjacent bow section of the traveler and the upper bearing surface of the ring, and means for releasing the bearing pressure on the yarn'during a portion of each revolution of the traveler to release the yarn for winding.

9, A spinning mechanism comprising a spinning ring, the inner periphery of which comprises upper and lower inwardly converging bearing surfaces, a traveler shaped so that, when it is running with its inner horn riding on the, said lowerbearing surface, the yarn will extend, be pressed, and form a bearing medium, between the inner side of the adjacent bow section of the traveler and the upper bearing surface of the ring, and a depression in the upper bearing surface of the ring for relieving the pressure on the yarn when thetraveler passes thereover and thus release the yarn for winding. 7

1 O. A spinning mechanism comprising a spinning ring, the inner periphery of which comprises upper and lower inwardly converging bearing surfaces, a traveler shaped so that, when it is running with its inner horn riding onthe said lowerbearmg surface, the yarn will extend, be pressed, and

form a bearing medium, between the inner side of the adjacent bow section of the traveler and the upper bearing surface of the ring, and a groove extending across the upper bearing surface of thering at an inclination to the elements thereof and at an inclination to the plane of the traveler when with its inner horn riding on the said lower bearing surface of the ring and with the inner side of the adjacent bow section extending substantially equidistant from and close to said upper bearing surface with the yarn. extending, pressed, and forming a bearing medium therebetween, and means for relieving the bearing pressure on the yarn during a portion of each revolution of the travelerto release the yarn for winding.

12. A spinning mechanism comprising a spinning ring, the inner periphery of which comprises upper and lower inwardly converging bearing surfaces, the upper surface being convex, a traveler having its inner horn and the adjacent bow section presenting the same angular relation as the said surfaces, the draft on the yarn and the centrifugal force generated by the revolution of the traveler acting to cause the traveler to run withits inner horn riding on the said lower bearing surface of the ring and with the inner side of the adjacent bow section extending substantially equidistant from and close-to said upper bearing surface with the yarn extending, pressed, and forming a bearing medium therebetween, and a depression in the upper bearing surface of the ring for relieving the pressure on the yarn when the traveler passes thereover and thus release the yarn for winding.

13. A spinning mechanism comprising a spinning ring, the inner periphery of which comprises upper and lower inwardly converging bearing surfaces, the upper surface aeing convex, a traveler having its inner I horn and the adjacent bow sect-ion presenting the same angular relation as the said surfaces, the draft on the yarn and the centrifugal force generated by the revolution of the traveler acting to cause the traveler to run with its inner horn riding on the said lower bearing surface of the ring and with the inner side of the adjacent bow section extending substantially equidistant from and close to said upper bearing surface with theyarn extending, pressed, and forming a bearing medium therebetween, and a groove extending across the upper bearing surface of the ring at an inclination to the elements thereof and at an inclination to the plane of the traveler when running thus to relieve the pressure on the yarn when the traveler passes over the groove and release theyarn for winding. I

In testimony whereof, I have signed my name to this specification.

CHARLES F. MERRILL.

Certificate of Correction.

Patent No. 1,646,063.

CHARLES F. MERRILL.

It is hereby certified that error appears in the printed specification of the abovenumbered patent requiring correction as follows: Page 4, line 11, claim 8, for the word releasing read relieving; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 22d day of November, A. D. 1927.

[SEAL] M. J. MOORE,

Acting Omnmz'ssioner of Patents.

Granted October 18, 1927, to 

